This is the 15012th most frequent Turkish word.
semptomlarının
"Of its/her/his symptoms."
In this sentence, 'semptomlarının' means 'of the symptoms' and serves as a possessive genitive construction, indicating possession by 'hasta', the patient.
Doktor hastanın semptomlarının nedenini araştırıyor.
The doctor is investigating the cause of the patient's symptoms.
Here, 'semptomlarının' is again used as 'of the symptoms', indicating ownership by the pronoun subject 'he' in the sentence.
Semptomlarının değiştiğini fark ettiğinde doktora gitti.
When he noticed that his symptoms changed, he went to the doctor.
In this example, 'semptomlarının' refers to 'your symptoms', showing possession contextually tied to the implied subject 'you' of the sentence.